Util.TJD_Julian() Method

Returns a UTC Julian date, given a Terrestrial Time Julian date (TJD).

Syntax

Util.TJD_Julian(TJD)

The method syntax has these parts:

Part	Description
TJD (Double)	a Terrestrial Julian Date (TJD)
Return (Double)	the corresponding UTC Julian date

Remarks

A Terrestrial Julian Date (TJD) is a UTC Julian date adjusted for the difference between UTC and Terrestrial Dynamical Time, and is thus suitable for input to solar system orbit calculations. For more information on time scales, see the Util Class documentation.

Note: This does not take into account the difference between UTC and Universal Time, which is at most 0.9 seconds.